Blind-hinge.



No. 818.285. PATENTED APR. 17, 1906.

J. H. POOLE.

BLIND HINGE.

AIPLICATION FILED JULY 3.1905.

L NTTED PATENT OFFTCE.

JOHN H. POOLE, OF BRAINTREE, MASSACHUSETTS, ASSlC-NOR, BY DIRECT AND MESN E ASSIGNMENTS, OF ONE-THIRD TO FRANK C. GRANGER, OF RANDOLPH, MASSACHUSETTS, ONE-THIRD TO EBEN H. GOOGINS, OF CAMBRIDGE, MASSACHUSETTS, AND ONE-THIRD TO ED\VARD E. PIPER,

BLlND-HIINGE.

Specification of Letters Patent.

Patented April 17, 1906.

Application filed July 3,1905. Serial No. 268,150.

T at whom it may concern.-

Be it known that 1, JOHN H. POOLE, a resident of Braintree, in the county of Norfolk and State of Massachusetts, have invented certain new and useful Improvements in Blind Hinges, of which the following is a specification.

This invention relates to blind-hinges of the type ordinarily employed for connecting I outside blinds or shutters with wooden buildings.

The hinge comprises a pintle member pro vided with external locking-faces and a leaf having a socket member provided with inter- 5 nal locking-faces. The socket member and the improved construction of the pintle member adapted to interlock with said socket member constitute the present invention, which is described and claimed hereinafter in this specification and illustrated in the accompanying drawings, in which-- Figure 1 represents a perspective view of the improved pintle member forming part of my invention. Fig. 2 represents a perspec- 2 5 tive view of the socket member and hingeleaf adapted to cooperate therewith. Fig. 3 represents a perspective view of the pintle and socket members assembled together and locked in one position. Fig. 4 represents an 0 end elevation of the pintle member, showing in section the socket member applied thereto.

The same reference characters indicate the same parts in all the figures. n

In the drawings, (1 represents the pintle, b

3 5 its shank, and c a brace for the shank and pintle, having a penetrating spur c. The pintle is attached to the wall of a building or to a window-frame by means of the said shank and brace. The pintle a is substan- 4o tially cylindrical through the greater portion of its length and at its base has an enlargement d, which extends upwardly some distance from the shank b. The sides of the enlargement are flattened to form opposite 4 5 faces 6, which are separated from each other at their upper ends by a distance approximately the same as the diameter of the pintle a, and are preferablyinclined in opposite di.

rections, as shown in Fig. 4. I 5 f represents a leaf or plate which is adapted to be attached in the ordinary manner to a blind or door, and g is the socket member of the hinge, which is secured to the leaf f, preferably being integral, therewith and formed from a tongue projecting from the plate, 5 5 which tongue is bent back upon itself to form a tube which is adapted to be placed over the pintle a. The upper portion of the socket is approximately cylindrical, while the lower portion is distorted, being somewhat 6o flattened. Thereby the socket is elongated, while the sides h h are pressed toward each other and internally flattened. This distortion is carried out to such an extent that the interior of the lower end of the socket is of a shape and size to fit closely over the enlarge-' ment d, the sides hit being adapted to engage the sides 0 of the enlargement. The members of the hinge are assembled in the manner illustrated. in Fig. 3, and when the blind bearing the socket is turned either to its open position or to its closed position the sides h h of the socket engage and embrace the sides 6 of the enlargement. It will thus be seen that the enlargement d has lockingfaces e e, which are eccentric to the pintle, while the sides h h of the base portion of the socket form on the interior thereof complemental locking-faces which are adapted to cooperate with the faces a and prevent the plate f of the hinge from turning. As the faces 6 e are on opposite sides of the pintle, it is evident that by turning the plate f and the socket through a half-revolution from the position shown in Fig. 3 the members of the hinge may be again locked in a different position and that thus the complemental lockingfaces are adapted to hold the members of the hinge in either one of two positions. Of course in turning the socket member from one to the other of these positions it is necessary to lift it clear of the enlargement d, and in order to prevent the socket being lifted entirely clear of the pintle there is provided a pin i set into the pintle at a distance above 9 5 the enlargement suflicient to permit enough upward movement of the socket to clear its lower end from the enlargement. The inclination of the faces 6 6 enables the internal faces h h of the socket to fit tightly on said faces regardless of wear of the contacting parts, such wear being compensated for by the inclination of the faces.

I claim 1. A blind-hinge comprising a pintle member having external locking-faces at its lower portion, and a socket member having internal locking-faces at its lower portion adapted to engage the lockingfaces of the pintle member and lock the socket member in either of two positions.

2. A blind-hinge comprising a pi'ntle member having external opp0sitely-inclined locking-faces at its lower portion, and a socket member having internal loekingfaces at its lower portion adapted to engage the lockingfaces of the pintle member and lock the socket member in either of two positions.

3. A blind-hinge comprising a pintle member having an enlargement at its base, and a socket member constructed to rotate on the pintle and formed at its lower end to surround said enlargement and engage the sides thereof to lock the socket member in either of two positions.

4. A blind-hinge comprising a pintle member having at its base an enlargement provided at opposite sides with locking-faces, a leaf and a socket connected to the leaf ada ted to rotate on the pintle, the socket bemg distorted at its lower end to provide internal locking-faces adapted to engage the faces of said enlargement and lock the socket and leaf in either of two positions.

In testimony whereof I have aflixed my signature in presence of two witnesses.

JOHN H. POOLE.

Witnesses:

C. F. BROWN, E. BATOHELDER. 

